. Elementary entomology . FIG. 114. Cluster of eggs of the lace-winged fly (Chrysopa}. (Greatly enlarged) (After S. J. Hunter) streams, where they feed on the young of various aquatic insects. They are readily recognized by the leglike appendages and a large tuft of tracheal gills on either side of each abdominal segment (Fig. 113). It requires nearly three years for the larva to become full grown, when it forms a cell beneath a stone, or some object near the bank, and pupates, the adult appearing about a month later. The adults are readily recognized, as they have a wing ex- panse of from fou
. Elementary entomology . FIG. 114. Cluster of eggs of the lace-winged fly (Chrysopa}. (Greatly enlarged) (After S. J. Hunter) streams, where they feed on the young of various aquatic insects. They are readily recognized by the leglike appendages and a large tuft of tracheal gills on either side of each abdominal segment (Fig. 113). It requires nearly three years for the larva to become full grown, when it forms a cell beneath a stone, or some object near the bank, and pupates, the adult appearing about a month later. The adults are readily recognized, as they have a wing ex- panse of from four to five and one half inches and the males have remarkably long mandibles. On the rocks under which the larvae live the eggs are laid in chalklike masses of from two to three thousand.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookpublisherbostonnewyorketcginnandcompany, booksubjectinsects
